I'm not really sure what the title of the post is asking. If you want to choose $5$ marbles, $2$ of which are red and $3$ of which are not red, then there are no repetitions here. You need the Multiplication principle here (mathworld.wolfram.com/MultiplicationPrinciple.html).
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JavaManJan 18 '12 at 4:14

I won't downvote, but for future reference I think that giving answers outright should be discouraged, especially when the OP has yet to respond to comments in the OP can discuss the problem.
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JavaManJan 18 '12 at 4:44

@JavaMan: Ok, i'm new to this forum. I'll bear it in mind.
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true blue anilJan 18 '12 at 6:27